Partial Denial of Service (DoS)

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.3.0"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "mobsf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-24804"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-05T21:09:21Z",
    "nvd_published_at": "2025-02-05T19:15:46Z",
    "severity": "HIGH"
  },
  "details": "# Partial Denial of Service (DoS)\n\n**Product:** MobSF\n**Version:** v4.2.9\n**CWE-ID:** CWE-1287: Improper Validation of Specified Type of Input\n**CVSS vector v.4.0:** 6.9 (AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)\n**CVSS vector v.3.1:** 6.5 (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)\n**Description:**  DoS in the Scans Results and iOS Dynamic Analyzer functionality \n**Impact:** Leveraging this vulnerability would make Scans Results and iOS Dynamic Analyzer pages unavailable.\n**Vulnerable component:** urls.py\nhttps://github.com/MobSF/Mobile-Security-Framework-MobSF/blob/d1d3b7a9aeb1a8c8c7c229a3455b19ade9fa8fe0/mobsf/MobSF/urls.py#L401\n**Exploitation conditions:** A malicious application was uploaded to the MobSF.\n**Mitigation:** Check the uploaded bundle IDs against the regex.\n**Researcher: Oleg Surnin (Positive Technologies)**\n\n## Research\n\nResearcher discovered zero-day vulnerability Partial Denial of Service (DoS) in MobSF in the Scans Results and iOS Dynamic Analyzer functionality.\nAccording to Apple\u0027s documentation for bundle ID\u0027s, it must contain only alphanumeric characters (A\u2013Z, a\u2013z, and 0\u20139), hyphens (-), and periods (.).\n(https://developer.apple.com/documentation/bundleresources/information-property-list/cfbundleidentifier)\nHowever, an attacker can manually modify this value in `Info.plist` file and add special characters to the `\u003ckey\u003eCFBundleIdentifier\u003c/key\u003e` value.\nIn the `urls.py` file URL rules are defined.\nhttps://github.com/MobSF/Mobile-Security-Framework-MobSF/blob/d1d3b7a9aeb1a8c8c7c229a3455b19ade9fa8fe0/mobsf/MobSF/urls.py#L401\n\n*Listing 3.*\n```\nbundle_id_regex = r\u0027(?P\u003cbundle_id\u003e([a-zA-Z0-9]{1}[\\w.-]{1,255}))$\u0027\n\n# skip code\nre_path(fr\u0027^ios/view_report/{bundle_id_regex}\u0027,\n                ios_view_report.\u00e7,\n                name=\u0027ios_view_report\u0027),\n```\n\nWhen the application parses the wrong characters in the bundle ID, it encounters an error.\nAs a result, it will not display content and will throw a 500 error instead. The only way to make the pages work again is to manually remove the malicious application from the system.\n\n## Vulnerability reproduction\n\nTo reproduce the vulnerability, follow the steps described below.\n\n\u2022\tUnzip the IPA file of any iOS application.\n\n*Listing 4. Unzipping the file*\n```\nunzip test.ipa\n```\n\n\u2022\tModify the value of `\u003ckey\u003eCFBundleIdentifier\u003c/key\u003e` by adding restricted characters in the `Info.plist` file.\n\n\u003cimg width=\"364\" alt=\"image-6\" src=\"https://github.com/user-attachments/assets/97dce68a-a5e2-4048-b5c8-3090146a9635\" /\u003e\n\n*Figure 7. Example with `\u0027` character`\n\n\n\u2022\tZip the modified IPA file.\n\n*Listing 5. Zipping the file*\n```\nzip -r dos.ipa Payload/\n```\n\n\u2022\tUpload the modified IPA file to Static Analysis and wait until it finished\n\u2022\tOpen the following pages:\n`http://mobsf/recent_scans/`\n`http://mobsf/ios/dynamic_analysis/`\n\n\u003cimg width=\"1119\" alt=\"image-7\" src=\"https://github.com/user-attachments/assets/a7a9ae2e-cd84-4ec8-8132-25140a209ca0\" /\u003e\n\n*Figure 8. DoS Example*\n\n\u003cimg width=\"1141\" alt=\"image-8\" src=\"https://github.com/user-attachments/assets/a76e03ae-b4c6-4003-a145-c1fa4c88a7a5\" /\u003e\n \n*Figure 9. DoS Example*\n\n\n_________________\n\n### Please, assign all credits to Oleg Surnin (Positive Technologies)",
  "id": "GHSA-jrm8-xgf3-fwqr",
  "modified": "2025-02-26T22:12:22Z",
  "published": "2025-02-05T21:09:21Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/MobSF/Mobile-Security-Framework-MobSF/security/advisories/GHSA-jrm8-xgf3-fwqr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24804"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MobSF/Mobile-Security-Framework-MobSF/commit/05206e72cae35b311615a70e51e1a946955c5e83"
    },
    {
      "type": "WEB",
      "url": "https://developer.apple.com/documentation/bundleresources/information-property-list/cfbundleidentifier"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MobSF/Mobile-Security-Framework-MobSF"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MobSF/Mobile-Security-Framework-MobSF/blob/d1d3b7a9aeb1a8c8c7c229a3455b19ade9fa8fe0/mobsf/MobSF/urls.py#L401"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MobSF Partial Denial of Service (DoS)"
}